Managing director Chris Harris said creating a version of Bloons TD 5 for the mobile platform had been time-consuming but incredibly satisfying.

"It feels amazing. When you put a lot of work into something like this, everybody involved was excited to see what would happen."

This coming weekend would be a crucial one for the company, he said.

"The US is about to celebrate Thanksgiving, which is the second-biggest time of year after Christmas for app store sales.

"If we can hold our position over the weekend, it'll be big for us."

Bloons TD 5 for mobile users comes after the game was first launched on the Ninja Kiwi website late last year.

Harris said that iPad and Android versions of the game would be coming soon.

Ninja Kiwi has produced around 60 games and its TD series itself has had over 1 billion plays on web and mobile devices. Bloons TD 4 has sat in the top 100 of all apps in the US App Store for over two years.

The company makes money from advertising on the Ninja Kiwi games site, by selling virtual currency and from their apps for Android and Apple devices smartphones and tablets.